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The HKS Piston Full Kit SR20 2.2L S1 86.5 is a complete piston set specified for SR20 engines at the 2.2L S1 86.5 sizing. Intended for stroker or rebuild projects, this full kit provides pistons matched to the S1 86.5 specification. Verify S1 dimensions and your engine’s machining before ordering so the kit aligns with required clearances and fitment.
HKS PISTON FULL KIT SR20 2.2L S1 86.5
